Computational intelligence technique based PI controller using SVC

This paper presents Evolutionary Programming (EP) based optimization technique for estimating PI controller parameters of a Static Var Compensator (SVC) which controls a synchronous machine. SVC is one type of Flexible AC Transmission Systems (FACTS) device, designed and implemented to improve the damping of a synchronous generator, as well as controlling the system voltage. Computational intelligence technique based PI controller using SVC is implemented in this study. The study involves the development of PI controller for SVC placement, while computational intelligence technique is used to optimize the values of proportional gain, K_P and interval gain, K_I parameters of PI controller. Validation with respect to eigenvalues determination and synchronizing and damping torque coefficients (K_S and K_D) value confirmed that the proposed technique is effective to improve the angle stability problem.